Mitel SX-5 User manual

Communications
System

MlTEL STANDARD PRACTICE SECTION MITL9103-098-000-NA
Issue 1, May 1982
COMMUNICATIONS SYSTEM
DOCUMENTATION
INDEX
1. GENERAL
1.02
This section lists MlTEL Standard Practices
which have been issued pertain~ngto the
SX-5 Communications System.
201
The complete set of practices are listed in
Table
2- 1.
I §mien I Title 1
General Deription
rcss and Services Description
Ordering In.formation
!%gmearing Information
Shppng, Redving and Instiallation Procedures
Programming and InMlation Forms
Sy- Test
Tro&lahooting
Copyri.ght of MITE1 Corporation 1982
Trademark of MlTEL Corporation 1982 Page
1

MITEL STANDARD PRACTlCE SECTION MITL9103-098-100-NA
Issue 1, May 1982
COMMUNICATIONS SYSTEM
GENERAL DESCRIPTION
CONTENTS PAGE
1. GENERAL
.................... 1
Introduction .................. 1
...........
2 GENERAL DESCRlPTlON 1
Reserve Power
................ 3
Maintenance ..... , ............ 3
Documentation
................ 3
..........
3. PHYSICAL DESCRIPTION 3
Card Enclosure ................ 3
System Switches ............... 3
................. Circuit Cards 4
.............. Control Extension 4
System Power ................ 5
Power Failure Transfer ........... S
4. FEATURES ................... 5
..................... General 5
Feature Provisioning ............. 5
5. ELECTRICAL CHARACTERISTICS ..... 6
6. SYSTEM OPERATlON ............. 6
7. SYSTEM CONFIGURATlON ......... 7
..................... General 7
Circuit Card Description .......... 7
8. INSTALLATION AND MAINTENANCE
REQUIREMENTS
............... 10
Installation .................. 10
Maintenance
.................. 11
1. GENERAL
Introduction
1.01
This section contains a brief description of
the SX-5 Communications System, and
its
features and services
2 GENERAL DESCRIPTION
201
The SX-5 is an extremely compact and
reliable electronic telephone communica-
tions system employing solid-state space division
switching, and stored program control. The
system can accommodate two Central Office
trunks and six extensions The SX-5 is com-
patibie with most existing Private Branch Exchan-
ges (PBX's), and Central Office (CO) equipment
The system provides
Extremely small size (approximately 0.34
cubic feet)
(9,628 cucm))
Low power consumption CTYP. 0.4 amps)
Simultaneous use of DTMF and Rotary Dial
extensions
DTMF to Diai Pulse Conversion
Direct
Trunk Select or Trunk Group
Operation
Simple Installationand Maintenance
Many cost effective standard features
Console-less operation
Optional reserve power unit
202 The SX-5 consists of a single cabinet,
holding the switching circuitry and power
su9ply. System power is 110 volts or 220 volts
at 60 or 50
Hz, fed through the power cable
from a commercial power outlet All other con-
nections to the system are made using standard
telephone connection cable and screw-down
terminals Refer to
Fig 2-1, SX-5 Equipment
Cabinet Optionally,
the two CO trunks may be
connected via standard RJ11C connectors. The
Main Card, which contains the switching circuitry,
is accessible at two levels The first level of
entry allows access to the terminal strip, LED'S,
and system switches The second level of entry
allows module replacement by a qualified tech-
nician.
Copyright of MITE1 Corporation 1982
4 Trademark of MIEL Corporation 1982 Page 1

SECTION MITL9103-098 -100 -NA
COVER RETAINING
MUSIC ON HOUI
RESERVE POWER
TYPICAL
X5221R3
Fig. 2-1 SX-5 Equipment Cabinet
Page 2

SECTION MITL9103-098-100 -NA
2.03
The extremely compact size and attractive
design of the SX-5 allows the system to
be mounted in any office or home environment
Reserve Power
204 If required, the SX-5 may be connected to
a reserve power supply which will maintain
system operation for a minimum of 45 minutes
(averagetwo hours).
Maintenance
205 The SX-5 is shipped fully equipped from
the factory. In case of a malfunction, main-
tenance
can be simplified to system replacement
or, if mo&le faults are identified, the second
level of entry allows module replacement by a
quatified technician. Refer to Section 8 Installation
and Maintenance Requirements of this practice.
Note: The second level of entry should only
be attempted by a qualified tech-
nician.
Documentation
206 Table 2- 1 lists all MlTEL practices as-
sociated with the SX-5 Communications
System
Fig 3- 1. The total weight of the system is 12.5
Ibs. (5.7 kg). All connections to the system,
power cord and standard telephone cable pairs
enter
at the bottom of the SX-5 access door
and are terminated directly on the terminals at the
right-hand edge of the Main Card
Note: The SX-5 and all primary and reserve
power supplies should be grounded
in
accordance with accepted practices to
prevent damage to the system. MITE1
provides technical bulletins, as well
as the detailed installation informa-
tion contained
in Section MITL9103-
098-200-NA, concerning correct in-
stallation practices. These are availa-
ble on request. Adherence to the prac-
tices outlined
in these bulletins will
minimize the possibility of damage
to
electronic devices (such as the SX-5)
from static discharge and AC power
surges.
Refer to:
CTlB-80-20-1001200-001, Installation
Practices and Protection Techniques.
9180-960-000-NA, Customer Bulletin
(Grounding).
9180-960-001-NA, Customer Bulletin
(SurgeProtection).
MITL9103-098-200-NA, Shipping, Re-
ceiving and InstallationProcedures.
3. PHYSICAL DESCRIPTION System Switches
Card Enclosure 3.02
The SX-5 has two system switches locat-
3.01 The SX-5 consists of a single enclosure, ed on the upper right-hand side of the
containing the printed circuit cards, with a Main Card The top most switch is the Prograrn-
lockable access door on the right-hand side. The ming Switch, Switch 2 (SW2).This switch enables
overall dimensions of the system are shown in programming and is also used to reload the
TABLE 2-1
SX-5 DOCUMENTATION
Page
3
SECTION
MlTL9103-098-100-NA
MITL9103-098- 105-NA
MITL9103-098- 150-NA
MlTL9103-098- 180-NA
MlTL9103-098-200-NA
MITL9103-098-205-NA
MITL9103-098-320-NA
Mm9103-098-350-NA
TITLE
General Description
Features and Services Description
Ordering lnf
ormation
Engineering lnformation
Shipping, Receiving, and Installation Procedures
Programming
Extension Test Procedures
Maintenance and Troubleshooting

SECTION MITL9103-098-100-NA
Fig. 3-1 SX-5 Dimensions
system default data. Switch 1 (SW1) is located form Control Functions (i.e. Night Service Select),
directly below SW2. This switch enables either or as a normal extension.
Direct Trunk Select or Trunk Group Operation.
Below the system switches is the system reset
button.
Circuit Cards
3.03 All printed circuit cards employed in the
system
are identical in construction and
consist of a fiberglass board with printed circuit
patterns on both of its faces. Table 3-1 lists the
card types, their dimensionsand weights.
Control Extension
3.04 The extension connected to Equipment
Number 1
(EN 1) is known as the 'Control
Extension'. The 'Control Extension' may be used
either to program the system, depending on the
position of the uppermost switch (SW2),to per-
Page 4
TABLE 3-1
CARD TYPES
Weight
1.19 Ib
0.54 kg
0.56 Ib
0.26 kg
0.37 Ib
0.17 kg
0.31 Ib
0.14 kg
Card Type
Main Card
Power
Supply Card
Trunk Module
Memory
Module
Dimensions
11.1 in x 9.7 in
282 rnm x 246 mm
2.5 in x 9.7 in
64 mm x 246 mrn
6 in x 4.38 in
152 mm x 111.3 mm
7.0 in x 4.0 in
178 mm x 102 mm

SECTION MITL9103-098-100-NA
I
-
-
I
PROGRAMMING
ENABLEIOISABLE (SW 2)
SYSTEM
sELtn
RESET
BUTTON
STATUS LED
X533SR3
Fig. 3-2 SX-5 System Switches
System Power Button is momentarily pressed, a ground is
applied to the Ring lead, energizing the
3.05 All system power is supplied from a 110 local CO equipment Call originations over a
V to 120 V optional 50 or 60 Hz power loop start trunk do not require the use of
supply fused at 1.0 amp (220
V to 240 V opera-
the Ground Button or Loop/Ground start
tion is optional). converter.
Power Failure Transfer
4. FEATURES
3.06 Whenever a commercial power failure oc-
curs, the Power Failure Transfer
(Pm relay
automatically connects Trunk
1 to Extension 1,
and Trunk
2 to Extension 2. In the PFT mode of
operation:
INCOMING CALLS on the two trunks ring
the corresponding extension (1 or
2)
directly. Ringing voltage is supplied by the
local CO.
OUTGOING CALLS may be originated from
either extension To originate a trunk call
over a ground
start trunk, extensions must
be equipped with a Ground Button or
a
Loop/Ground converter. When the Ground
General
4.01 The SX-5 comes equipped with a features
package Generic 50, which provides the
system with a number of features not found in
any other system in this line size. These features
are detailed in Table
4-1 and each feature is
described in Section Mln9103-098- 105-NA,
Featuresand Services Description
Feature Provisioning
4.02 The
SX-5 is equipped with a default num-
bering plan This commonly used numbering
plan is automatically loaded when the system is
initially powered up.
Page
5

SECTION MITL9103-098-100-NA
TABLE 4-1 SX-5 FEATURES
Alarm Indication Lockout
Automatic Callback
- Busy MakeIBreak Ratio
Automatic Callback
- Don't Answer Mixed Station Dialing
Automatic Station Release Music on Hold
Background Music NightIDay Service
Call Forwarding
- All Calk
Power Failure Restart - Battery
Call Forwarding
- Busy Power Failure Restart
- PROMIROM
Call Hold, Retr~evefrom Power Failure Transfer
- Both Trunks
any Station Privacy
- Automatic
Common Audible Ringing Programmable Disconnect Timing
Console-less Operation Programming
Control Extension Reversal Meaning
Control Functions Rotary Dial Pulse-to-Digit Conversion
Data Line Security Selectable Numbering Plans
Default Data Selectable Ringing Frequency
Dial Call Pickup Speed Dial
Direct-In Lines Timed Recalls
Direct Outward Dialing Toll Restriction
Direct Trunk Select Tone-to-Pulse Conversion
Discriminating Ringing Transfer/Add-On/Consultation Hold
i. Trunk vs Intercom Trunk Camp-On with Indication
ii. Trunk
1 vs Trunk 2 Trunk Group Operation
Do Not Disturb Trunk-to-Trunk plus Extension Conference
Extension Switchhook Flash Timing Voice Paging
, Last Number Redial Wait for Dial Tone
4.03 Most system and extension features are
inherently activated in the SX-5, thereby
reducingthe amount of programming necessary.
4.04 Some programming may be necessary to
customize the data base for such features
as Toll Restriction, or Extension Access to Out-
going Trunks Any such programming is perfor-
med by dialing digits from the Control Extension
To protect customer data from accidental
change, System Switch SW
2 can be used to
disable ProgrammingFunctions.
5. ELECTRICAL CHARACTERISTICS
5.01
The electrical characteristics of the SX-5
are listed in Table 5- 1. Refer to Table 5-2
for the SX-5 tone plan
6. SYSTEM OPERATION
6.01
The SX-5 is a solid-state communications
system employing space division switching
and microprocessorcontrol of call processing
A
block diagram of the SX-5 is shown in Fig. 6- 1.
6.02 The microprocessor can access all areas
of the SX-5 either for information or to
change the state of equipment The micro-
processor scans the extensions and trunks, and
controls the connections to the four speech
paths. All extensions and trunks have access to
each of the four speech paths.
6.03 The SX-5 can operate in either a 'Direct
Trunk Select' or 'Trunk Group Operation'
mode. This feature is accessed either via the
System Switch SW 1 or programming. In the
'Direct Trunk Select' mode, a single-digit access
code is dialed for
each trunk. When operating in
a 'Trunk Group Operation' mode, a single-digit
access code will select
either idle trunk
6.04 Incoming trunk calls may be identified by a
ringing pattern that is different from the
ringing pattern of internal calls. Each incoming
trunk
can also be identifiedby its own distinctive
ringingpattern Therefore, it is possible to distin-
guish between incoming calls on Trunk
1 2nd
Trunk 2, and internal calls Refer to Section
MlTL9103-098- 105-NA, Features and Services
Description
- Discriminating Ringing.
Page 6

SECTION MITL9103-098-100-NA
TABLE 5 -1
SX -5 ELECTRICAL CHARACTERISTICS
TABLE
5- TONE PLAN
Parameter
Station Loop Limit
Minimum Leak Resistance
Maximum Number of Ringers per Line
Ringing Voltage
Ring Trip
Crosstalk
Tone Plan
Insertion Loss: Station-to-Station
Insertion Loss: Station-to-Trunk
Longitudinal Balance
Return Loss
Idle Circuit Noise
Impulse Noise
System Impedance
Primary Power
Central Office Loop Limit
Environmental Requirements
Detail
600 ohms including set at 20 mA;
360 ohms including set at 25 mA
15,000 ohms
3
90 Vrms, at 17.5, 20, or 25 Hz
During silent or ringing period
Better than 75 dB down
As defined in Table 5-2
5 dB+/- 0.5 dB at 1000
Hz
0.6 dB+/- 0.4 dB at 1000 Hz
60 dB minimum, 200-3.400 Hz (on trunks)
16
dB single frequency, 24 dB echo
16 dBrnC maximum
0 counts above 55 dBmC for 95% of cases
- 600 ohms nominal for extensions
900 ohms nominal for trunks (600 ohms
optional)
1 10- 120 Vac. 47-63 Hz, 0.6 A maximum,
0.3
A typical (220 V operation optional)
1600 ohms maximum
0
- 40°C (32- 104OFI
10% - 90% Relative Humidity noncondensing
7. SYSTEM CONFIGURATION
TONE
Dial Tone
Busy Tone
Ringback
Tone
Reorder
Tone
Camp-On
Tone
Transfer
Dial Tone
General
TONE PLAN 1
3501440 Hz
Continuous
4801620 Hz
500 ms On,
500 ms Off
Repeated continuously
4401480 Hz
1 sec On,
3 sec Off
Repeated continuously
4801620 Hz
250 ms On,
250 ms Off
Repeated continuously
440 Hz
Single burst of
200 ms
3501440 Hz
100 ms On,
7.01 The SX-5 equipment cabinet consists of a
single enclosure containing the entire
system electronics, and power supply. The
system contains four circuit cards Main Card,
Power Supply Card, Trunk Module, and the
Memory Module. Main and Power Supply cards
are connected to the chassis, with the Trunk and
Memory Modules plugging into the Main Card
Keyed connector patterns prevent Trunk and
Memory Modules from being plugged into the
wrong position
100 ms Off
Repeated three times,
then continuously
Circuit Card Description
7.02 All circuit cards used in the system are
constructed of a fiberglass boaid with
printed circuit patterns on both of its faces. Re-
fer to
Fig 7-1, SX-5 Equipment Layout The
functions of the cards are as follows
(a) MAIN CARD: contains all the switching
circuitry including the six extension inter-
faces. This card also includes:
Page 7

Fig. 6-1 SX-5 Block Diagram
Page 8
7------------------------------ ----,-- -
t
7
I
I
I
I
I
I
I
1
EXTENSIONS
(6)
i
!------------
I
I
'
I
4 SPEECH /
I
PATHS
I
I
I
1
I
1
TO CENTRAL
OFFICE
1
TRUNKS
(2)
I
I
I
'
I
I
I
I
I
I
1
1
I
I
I
1
I
I
I
1
CUSTOMER- I
PROVIDE0
PAGING AMPLIFIER 1
AND SPEAKERS
I
PAGING
ClRCUlfRY
(1)
I
I
TONE
SOURCES
3
I
I
I
I
1
I
1
CUSTOMER- I
PROVIDED 7
MUSIC SOURCE
RECEIVERS
(21
MUSIC ON HOLD
CtRCUlTRY
1 I
i! I I
I :
1 t
I I
I I
I
I
I PROCESSOR
I
I
'1
COMMON
EQUIPMENT
1'
1 I
L- ---, - -
Ji
I
I
i
3
i
OATAIAODRESS 1
BUS
I
1.
I
b
I
I
I
I
&
MEMORY
(1)
I.
I
I
I
I
I
I
I
1
I
Is I
b ,,-----------------------------------l
X5203R1
POWER
SUPPLY

SECTION MITL9103-098-100-NA
Fig. 7-1 SX-5 Equipment Layout
Page 9

SECTION MITL9103-098-100-NA
Central Proccessing Unit (CPU)
Terminal Strip
Reset Button
System Switches
Status
LED
Six Extension LED's
DTMF Receivers
PagingCiruitry
Music on HoldCircuitry
Call Progress Tone Generators.
Ringing Generator Circuitry
POWER SUPPLY CARD: contains all the
circuitry necessary to conven commercial
AC power to voltages necessary in the
operation of the system Satisfactory
operation of the system's voltage sources
are indicated by four illuminated LED's on
the Power Supply Card These LED's are
visible when the access door is opened
Refer to Figure
7-1, SX-5 Equipment
Layout
TRUNK MODULE: plugs into the Main Card
and provides access to two CO trunks.
This module can be set for ground or loop
start operation There are two types of
Trunk Modules available. One type has a
nominal impedance of 900 ohms and the
other 600 ohms nominal impedance.
(dl MEMORY MODULE: plugs into the Main
Card This module includes:
Read Only Memory (PROMIROM) holding
the system operating instructions
Non-Volatile Random Access Memory (NV
RAM) containing the customer data base
Customer Data backup batteries protecting
the NV RAM against commercial power
failure and loss of customer data
Random Access Memory (RAM) containing
temporary data
8. INSTALLATION AND MAINTENANCE
REQUIREMENTS
Note: Caution is necessary during installa-'
tion and maintenance of any elec-
tronic equipment. such as the SX-5, to
avoid possible damage to the system
electronics by static discharge.
A
simple means of avoiding the pos-
sibility of such damage, is the use of
the "Static ProtectionWrist Strap" at-
tached to one cabinet hinge. MlTU
strongly advises the use of this wrist
strap; failure to do so can lead
to im-
proper system operation and decreas-
ed system life.
lnstallation
8.01 The following requirements must be met
when selecting
a location for the SX-5
equipment cabinet
The location MUST
BE
Dry and clean
Well ventilated
Well lit
Easily accessible.
The location MUST NOT
BE
Near a sprinkler system, sweating pipes,
steam pipes, or steam vents
In areas where corrosive fumes or exhaust
from machinery is present
Next to a reproducing or copying machine.
A minimum clearance of 10 feet
(3 m)
must be provided and the room should be
ventilated by
an exhaust fan if the re-
producing machine is not equipped with a
filtering system.
8.02 lnstallation of the SX-5 consists of 5
steps:
1. Mount the SX-5 vertically in the desired
location
2. Set the system switch 1 (SW1) to
Direct Trunk. Select (OPEN) or Trunk
Group Operation (CLOSED).
3. Connect the Trunk, Extension, Paging,
and Music on Hold pairs to the terminal
strip connector.
4. Apply power to the system
5. Program ?he system,
if necessary.
Refer to Section MITL9103-098-200-
NA. Shipping, Receiving and Installation
Procedures
Page 10

SECTION MITL9103-098-100-NA
Maintenance
8.03 The SX-5 requires no routine maintenance.
In case of
a malfunction, there are two
choices of action: replace the system or execute
troubleshooting procedures. For troubleshooting
purposes, two levels of entry are available. The
first level of entry allows access to the Status
LED, Power Supply LDs, Extension LED'S, Ter-
minal Strip, and System Switches. The second
level of entry allows access to
the replaceable
components, i.e. the Trunk and Memory Modules,
and Line Circuits. Refer to Section
MITLS
103-098-350-NA, Maintenance and
Troubleshooting.
Page 11

THE FOUOWlNG AMMENDMaCTS SHOULD BE MADE
TO SECTTON MlTL 9 103-098- 105-NA
FEATURES AND SERVICES DESCRlPTlON
BEFORE USING THE SX-5

The following ammmdments should be made to Section MIh9103--098-
105-+A, "Feature3 and Sorvices Descriptionu, brrirors using the SX-3.
o Page 4, Autamatic CalLback - BuJ~~ .and Page 6, Automatic Callback -
Don ' t Answer:
Now reads: o
19 the two partie3 involved in callback hold a
' conversation (not a tonfrr~nce)befay8 the
callback is h0nourhdr the callback will be
cancel1 ad automatically.
Change ta: o If the ttoo statians involved in callback hold a
conversation (including a conf8r~ncr)be9oru
the callback is honoured, the callback will be
cancelled automatically. I9 a station that has
set up a callSack on trunk a:cssse~ fttaf tcunk
fur an outgoing call befor. the callback can be
honored, the callback is cancelled. (HOUCV~~
. an incoming call on that t~unt or r confer*neo
uith it will not cancel the callback. 1
o Page 7, Automatic Station Release:
Now reads: o ....
the extansion must go en-hook to resstablish sewica.
0 ....
the extension must go on-hook to reestablish S~WV~C~.
Change to: o . . . .
The extansian must go on-hook to r~rs.iablishservicsr
or +lash the switchhook.
0 ....
The extension must go on--hook to reertablish rarvicar
or +lash the switchhook.
o Page 14, Common Audible Ringing, Canditions:
Now reads: o
I? the main extansion has Call Forwarding - Busy set4
the +orwardre becomes the temporary main exfension oi
the gruup.
Chmga to: o If the main extan~ion has Call Forwarding (eitaet
type) $atr the furwardee becomes the temporary main
ext8nsion or the gruup. '
a Page 214 Tabla 3. DwSault Data, Ring h.uups:
Now reads: Day Service Ring C~eup 2 -
Hain extansion
- directory numbe? 12
Auxiliary member
- directory numbers 12 I34
14, 156 16
Ringing delay - 2 ringing cycles
Night Servica Ring
Croup 2 -
Main extansion - directory number ?2
Auxiliary membet - dirrsctary nvmberr 124 ?=,
14, 13, 16
Ringing delay - 0 ringing cycles

Change ta: Day Setvi~s Ring Craup 2 -
Main extension
- directory number 12
Au x i1iaty membrr
- dirmctary numbarr 111
13,
14~ 158 :b
Ring ing delay - Z ringing cycler
Night Service Ring Dtoup
2 -
Maia extansion - directory number 12
Au x ilia~ymemb er - directory numbers 12, 130
149 15 16
Ringing delay
- 0 ringing cycles
o Page 22, Dial Call Pickup, Ferturv Selmction:
Now rcsds: To Remove ell Extensions from Both Pickup Groups:
o Liet the Control Extansion handset
- dial tune is
returnmd
o Dial 302 - acknauledge tone is rwturned.
Chrngs to: To Remove a11 Extrnsions Pram Pickup Croup 1:
o LiPt the Contrul Extension handset - dial tone is
rsturnmd
o Dial 3023 - acknoroledge tqno is ?.turned.
To Remove all Exfensions 9tom Pickup Croup 2:
o LiFt the Control Extension handset - dial tone is
returned
o Dial
3025 - acknoaledge tone is returned.
o
Page 24, Direct-h--line?r, Fcrtutr Selection:
Now reads: o Set St12 to OPEN.
Change trr: (0elet.I
Now reads: a Dial 301 ti. e. Remove ALL auxiliary members +'+om both
Ring woups).
Change to: o Dial 301A
A = 2 to remove all auxiliary members +tom Day Ring
C~OUQ I
- 3 to rwmove.rll auxiliary member* Prom Night Ring
Croup
t
= 4 to rsmave all auxiliary members from Pay Ring
Oroup 2
= S to remove a11 auxiliary memters from Night Ring
Croup
2
Nato reads: o Set St&? to -ED.
o Rmrssign remainder 09 Ring Croups a3 desired. Ra+er
to Comraan Audible 2inping within this practice.
Changm to: (Delete)
o Page 31. Last Number Rodiall Canditienr:
Now reads: o Only last valid eunk call numoer wil!. be rsdraled.
and then only if it was the Last number dialed from the
. extension.
Change ta: 0 Only tho last valid +unk call numoer will be ?*dialed.
o Page 33, IlakefBrsar Ratio, Programming: